Computing-machine.



Nu. 663,89l.

No Model.)

I Patented Dec. 18, I900. H. J. HANSON.

COMPUTING cums.

(Application filed Oct. 13, 1900.)

4-Sheets-Sheet l,

THE RRRR rs PETERS co. PHOTO-LITHO., WASHINGTON, n. c

No. 663,89l. Patented Dec. 18, I900. H. J. HANSON.

COMPUTING MACHINE.

(Application filed Oct. 13, 1900.]

@iezz 2 0x ,5/ M W 171 015] a/1aw1, By %2J //z752"/zzya No. 663,891.Patented Dec. l8, I900.

H. J. HANSON.

COMPUTING MACHINE.

[Application filed Oct. 13, 1900.)

(No ModeL) 4 Sheets-$heet 3.

I? WW.

No. 663,89l. Patented Dec. 18, I900. H. J. HANSON.

COMPUTING MACHINE.

(Application filed Oct. 13, 1900) (No Model.) 4 Sheets-8heet 4 X/ 4 wa tUNITED STATES PATENT OFFICE.

HANS J. HANSON, OF HANSONVILLE, MINNESOTA.

COM PUTlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 663,891, dated December18, 1900.

Original application filed June 4, 1900, Serial No. 18,979. Divided andthis application filed October 13, 1900. Serial No.

To all whom it may concern.-

Be it known that I, HANS J. HANSON, a citizen of the United States,residing at Hansonville in the county of Lincoln and State ofMinnesota,have invented certain new and useful Improvements inComputing-Machines; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My present invention relates to computingmachines, and has for itsespecial object to provide a machine of simple construction and smallcost by the use of which various oomputations-such, for instance, as thecost of a certain number of bushels of grain at a certain price perbushel or the interest on a certain sum for a certain number of yearsand fractions thereof at a certain rate of interest and analogouscomputations-may be quickly and accurately made even by persons not ableto make such calculations mathematically.

To the above ends my invention consists of the novel devices andcombinations of de vices hereinafter described, and defined in theclaims.

This application is filed as a division of my pending application,Serial No. 18,979, filed June 4, 1900, and allowed August 23, 1900,entitlec Calculating-Machine.

My present invention is illustrated in the accompanying drawings,wherein like characters indicate like parts throughout the severalviews.

Figure 1 is a view, partly in plan and partly in horizontal section, onthe line x 50 of Fig. 2. Fig. 2 is a vertical section approximately onthe line :0 1: of Fig. 1. Fig. 3 is a vertical section takenapproximately on the line :0 00 of Fig. 2. Fig. 4c is a front elevationof the keyboard portion of the machine, some parts being broken away;and Fig. 5 is a de tail in vertical section of a portion of one side ofthe case and certain other parts, taken approximately on the line 09 ofFig. 3.

The numeral 1 indicates the case of the ma chine, the same, as shown,having a lower compartment in which a drawer 2 is mounted to work belowa false bottom 3 of the said (No model.)

case. The upper portion of the case is preferably formed by sheet-metalsections 4 and 5, the latter of which is detachable. The section a isprovided with a series of slots 6, spaced apart laterally, as best shownin Figs. land Q. There are nine of these slots, and the purpose of thesame will hereinafter appear.

Suitably mounted at their inner ends on a transverse pivot-rod 7 is aseries of keyrods 8, nine in number, the free outer ends of which workone in each of the slots 6 of the plate 4:. These keys 8 are subject tosprings 9, which yieldingly hold the same upward, and at their outerends they are provided with finger-pieces or heads 10, markedconsecutively from the left toward the right with the numerals or digits1 to 9, inelusive.

Mounted for pivotal or oscillatory movements within the case 1 on ahorizon tally-extended shaft 11 is a lever 12, preferably of therectangular form shown. The lever or frame 12 is adapted to be movedfrom the position indicated by full lines into the position indicated bydotted lines in Fig. 2, and at its forward end it is provided with astepped plate 13, preferably bent to form the segment of a cylinder.Said plate 13 has nine steps, varying in height from the left toward theright and standing one under each of the key-rods 8, as best shown inFig. -:t.

The oscillating lever-frame 12 is normally yieldingly held, as indicatedby full lines in Fig. 2, by means of a leaf-spring 14, one end of whichis applied to the top of the case 1 and the other end of which, asshown, is applied to the rear inner end of said lever-frame 12. Thespring 1 1- is shown as provided with a branch spring portion 15, thefree end of which is pronged for engagement with the shaft 11; but thislatter feature forms no part of my present invention and is claimed inmy said pending application above identified.

The sides of the case 1 are provided with vertical channels or guides16, in which verticallymovable blocks 17 are mounted to freely slide.The blocks 17 are connected to the ends of a transversely-extendedchannellike rest 18. The lever-frame 12 is provided withoutwardly-projcoting fingers or lugs 19, which underlie the blocks 17and support and control the same.

The back of the case 1 is extended upward, as shown at 20, and spacedapart from, but just forward of, this portion 20 is a thin guide plateor rail 21, provided, preferably, with a slot 21. The indicator-head 22is mounted to slide transversely over the guide-plate 21, the same, asshown, having inturned lips 23 for holding it in place on the saidguide-plate. At its upper and lower ends the indicatorhead 22 isprovided, respectively,with notches 24c and 25 for purposes which willhereinafter appear.

The numeral 26 indicates a chart or card which is graduated or marked onits face, as presently noted. This chart 26 when in operative positionis supported by the channelrest 18, which, it will be remembered,receives its vertical movements, together with the blocks 17, from theoscillating lever-frame 12. The said chart 26 is adapted to he placed inworking position, as just indicated and as best shown in Fig. 2, bydropping it between the case-section 20 and the guide-plate 21, the topof the case being cut away, as shown at 27, to freely pass the same.

'l henumeral28indicates a so-callec quantity-strip which is subdividedand marked longitudinally of itself and transversely of the machine withnumerals indicating certain numbers of pounds, bushels, yards, or otherindications of measure. This quantity-strip is preferably looselysupported in a seat 29,

formed in the upper portion of a case extension 20.

The chart or card 26 is lined longitudinally to correspond to the numberof different positions which the lifting-lever 12 maybe given under theactions of the various keys 8, which in the machine described are ninein number. \Ve will assume that the particular chart or card 26 isgraduated or marked to indicate the selling price or sum which should bereceived for wheat or other produce in quantities corresponding to thenumbers on the quantity-strip 28 at a selling price varying from fiftyto fifty-nine cents per bushel. More pecifically stated, the top line ofthe chart, which is normally clearly seen through the slot 21 of theguide-plate 21, is marked in vertical lines with the numerals on thequan tity-strip 28 to indicate the value of the different quantities ornumber of bushels of grain or produce at fifty cents per bushel. Henceby moving the indicator-head 22 so that its upper notch 2-1 displays thefigure 10 of the quantity-strip its lower notch 25 displays the mark onthe chart 26. This of course indicates that ten bushels of grain atfifty cents per bushel are worth five dollars.

it is not, of course, necessary to operate the keys Sin calculating thevalue of any amount of grain or produce at fifty cents per bushel;

but for any other price, varying from fiftyone to fifty-nine cents,inclusive, per bushel the said keys must be depressed so as to raise thechart as an entirety. For instance, to determine the value of sevent ybushels of wheat at fifty-nine cents per bushel the head 22 should bemoved so that its upper notch 24; displays the figure on thequantity-strip 2S, and then the actuating-key marked with the numeral 9should be depressed to its limit. This will raise the chart 26 upward toits limit, so that the amount $41.30 is displayed in the notch 25 of theindicator-head 22. From theabove statements the principle of graduationor arrangement of the markings of the chart will be understood.

In practice I provide a series or plurality of quantity strips andcharts marked in various denominations for performing variouscalculations. For instance, I provide interest tables, subtraction andmultiplication tables, tables for determining the prices or values oflumber, $00.; but as the principle of construction and operation remainsthe same throughout all of such devices I do not deem it necessary forthe purposes of this case to carry out specific illustrations furtherthan as above given.

The machine above described is in itself capable of considerablemodification within the scope of my invention.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is as follows:

1. A computing-machine comprising an oscillating lever or frame, a bankof keys havingadifferential action on said lever orframe, a chart orgraduated card movable vertically into different positions by said frameor lever, and a transversely-inovable indicator or head cooperating withsaid chart, substantially as described.

A computing-machine, comprising an oscillating frame, a bank of keyshaving a differential action on said frame, a chart or graduated cardmovable into different positions by said frame, a relatively stationaryscale or strip marked to indicate quantities, a transversely-movableindicator or head cooperating with said chart, substantially asdescribed.

3. The con'ibination with the oscillating lever-frame 12, having thestepped feed-plate 13, of the bank of digit-keys 8 operating one on eachstep of said plate 13, the verticallymovable blocks 17, subject to saidlever 12, the channel-like support 18 carried bysaid blocks 17, thegraduated chart or card sup ported by and movable with said rest 18, therelativelystationary quantity-strip,the guide plate 21, and theindicator head 22 sliding on said guide-plate 21 and provided with upperand lower end notches, substantially as described.

4c. The combination with a strip marked to indicate quanties, of a chartmarked in one direction to indicate the value of the various terial ormatter at a certain price, substanquantities at a certain price andhaving sevtially as described. to eral lines of such markings, forseveral differ In testimony whereof I affix my signature ent prices,means for variably moving one of in presence of two witnesses.

5 said members toward and from the other, and HANS J. HANSON.

an indicator movable lengthwise of the said \Vitnesses: two members, fordetermining on the said L. M. LENVIOK,

chart the value of a certain quantity of ma- DAVID WHALEN.

